Aqua Hot System - Tiffin Motorhomes Allegro Bus 2016 Owner's Manual

AQUA-HOT HEATING SYSTEM
The Allegro Bus features an Aqua-Hot
heating system (Figure 3-1) that provides
a continuous, on-demand supply of do-
mestic hot water, as well as interior zone
heating when and where it is needed.
Both heating features are accompanied
by a unique VDC-powered diesel-fired
burner and a VAC-powered electric heat-
ing element (120 VAC). These two heat-
ing sources maintain the temperature of
the Aqua-Hot's solution of water and an-
ti-freeze.
If interior heat and hot water are both need-
ed at the same time, the hot water will take
precedence over the interior heat, causing the interior heat to shut down and turn off until the water
flow is turned off from water sources.
The surge tank (Figure 3-2), which is located in the basement, should be routinely inspected to make
sure the anti-freeze fill line stays in the acceptable zone. If the anti-freeze becomes low, you must add
the recommended anti-freeze stated in the Aqua-Hot's owner's manual.
Figure 3-2: Surge tank
manual in your Tiffin Owner's Information Package.
HEATING & AIR CONDITIONING
Figure 3-1: Hydraunic heating system
22
If anti-freeze is totally depleted from the
surge tank, a switch will be released inside
the main Aqua-Hot tank, disabling the sys-
tem from operating. Anti-freeze will then
have to be added to the tank to reactivate
the switch and allow the system to operate.
If batteries become discharged and the
Aqua-Hot system is activated, the system
will automatically shut down before batter-
ies are totally discharged. Once power is re-
stored to the batteries, the system must be
reset by depressing the reset button on the
black panel of the surge tank (Figure 3-3).
For detailed operations on using the Aqua-
Hot Heating System, refer to the owner's